ABSTRACT
Pulmonary hypertension (PH) is a hemodynamic and pathophysiological condition defi ned as an increase in mean pulmonary arterial pressure (PAP) ≥25 mmHg at rest as assessed by right heart catheterization (Galie et al. 2009). PH can be found in multiple clinical conditions classifi ed into fi ve clinical groups with specifi c characteristics (Table 1) (McLaughlin et al. 2009).
